Apparatus for casting



Oct. 9, 1928. 1,686,624

w. H. MILLSPAUGH APPKRATUS FOR CAS TING Filed Sept. 26. 1922 2 Sheets-Sheet 1 mym INV EN TOR A TTORNE Y t; WWW

Oct. 9, 1928. W. H. MILLSPAUGH APPARATUS FOR CASTING Filed Sept. 26; 1922 2 Sheets-Sheet 2 INVENTOR I AT ORNEY Patented a. 9, 1928.

UNITEDSTATES- PATENT OFFICE.

H. MILLSPAUGH, OF SANDUSKY, OHIO, ASSIGNOR TO THE PAPER AND TEX- TILE MACHINERY COMPANY, OF SANDUSKY, OHIO, A CORPORATION OF OHIO.

APPARATUS non CASTING.

Application filed September 26, 1922. Serial No. 590,602.

specifically, its object is to provide an improved method of introducing molten metal or other material in fluid condition into the mold of a centrifugal casting machine so that ,it may be dumped or poured in rapidly without trapping any air or other gases. In connection with this new method, I have in-' Vented a novel form of filling trough which not only provides a simple device for carrying out the method herein described but also provides a simple way of strengthening troughs of this character and provides greater rigidity especially for such troughs as have considerable length.

These and other objects of this invention will'appear in the following specification in which I will describe my invention and the novel features of which will be set forth in appended claims.-

Referring to the drawings Fig. 1 is a sectional longitudinal elevation 1 of a casting machine and filling device therefor which are made according to and embody my invention.

Fig. 2 is an end view of the apparatus shown in Fig. 1. y i

Fig. 3 is a sectional transverse elevation of the same device, the section being taken on the line 33 of Fig. 1.

Fig. 4 is a plan view partly in section of the novel form of filling trough which I have invented,

Fig. 5 is a vertlcal sectional elevation of the filling trough.

Fig. 6 is a transverse section of the filling trough, the' section being taken on' the line 66 of Fig. 5.

Fig. 7 is a longitudinal sectional view of parts ofthe apparatus showing the filling trough tilted and illustrating the manner in which molten metal or other fluidmaterial escapes therefrom into the rotating mold.

Like characters of reference designate cor;

responding parts in all the figures of the drawings.

10 designates a rotating mold which is sup- 1 ported in suitable bearings 11 and 12 and which may be driven by'any suitable means such, for example, as a motor driven chain connected to a gear 13. The ends of this mold are closed by end plates 14.- and 15 removably secured thereto. These end plates are each provided with a circular opening concentric with the axis of rotation of the mold.

20,designates a filling trough which is of cylindrical form and which is supported in bearings 21, 22 in such a manner that it may be moved longitudinally and also rotated. A shaft 23 projects from one end of this trough which is provided with a handle 24 by meansof which the trough may be manipulated.

The trough may be pulled back out of the mold and into a ring bearing 25 and when in this position can be filled-with the material which is to be cast. After it haslbeen filled it may be pushed back again into the position in which it is shown in Fig. l and then tipped up-side down to cause the material which is contained in it to be dumped intothe rotating mold. The operation thus described is more fully I- lfavefound that in making castings with a. machine of this character, it is desirable through the metal. In order to overcome'this difliculty I have constructed a filling trough in the manner shown in the drawings. This is made from a hollow cylindrical casting such as a pipe along one longitudinal line of which I have cut the metal away as shown at 26, 26, leaving between .such openings the transversebar 27. These transverse bars not 7 only strengthen the trough itself but permit the additional function of separating the fluid material as it is dum ed out of the trough as-i's shown clearly in ig. 7. Because of this, the air and gas contained in the mold has a chance to escape andthereby thechar- .acter of the casting is greatlyimproved.

By referring to Figs. 4,5 and 6 the specific construction of the filling trou h may be seen 1n which figures the cylindrica metallic pipe pointed out in my Patent No.

1,058 250 of April 8,1913.

is designated by 28' and a lining within this pipe-of refractory material is designated by 29. kIn order to hold this lining in proper position I have secured to the insideof the pipe inside of the mold which in the specific instance illustratedwill be a pipe having a bellflange at-one end. This operation is performed very quickly and as soon as the metal has .been set the end plate 14 may be removed,

, the trough pulled back into the ring [bearing and the yoke 21 which supports the 'opposite'end of thetrough' during the pourmg operation may be dropped down out of i the way in the bearings 40 on which it is supported in the position shown at 21 Then the molded pipe can be removedfrom the mold 10, the endjplate 14 process repeated. v

For illustrative purposes I have shown one, specific structure for separating the fluid material as it leaves the trough, but it is with in the scope of this invention to utilize any other suitable structure for accomplishingreplaced and the this result.

' material may be poured when the trough is WhatIclaim is: i a

1. A filling device for casting machines which consists of arotatively supported trough arranged to hold material in a fluid condition, said" trough being constructed to form a plurality of spaced openings through which t 1 trough is turned on its axis of rotation;

2. A- filling device for casting machines whichconsists of a rotatively supported cylindrical trough arranged tohol'd material in a fluid condition, said trough being constructed to form a plurality of spaced openings in longitudinal alinement. throu h which the turned on its axis of rotation.

39A filling" device for casting machines which consists of a rotatively supported trough' arranged to hold material ina fluid condition, said trough being constructed to will describe ematerial maybe poured when the form a pourin opelfing in alinement with its rotation an having a strengthening bar passing transversely across said -opening.

*4. A filling device for casting machines which consists of a rotatively supported trough arranged to hold material in a fluid conditionysaid trough being constructed to form a pouring opening in alinementwith its rotation'and having a plurality of spaced strengthening bars across said opening. p

5. A -filling device for casting machines which consists of a- .rota'tively supported cylindrical trough arranged to hold material in a fluid condition, said trough being eonstructed-to form a pourlng opening in -a1ine-' ment with its axis of rotation and having a.

plurality of strengthening bars passing across said opening, sald' bars form n a contlnuation of the cylindrical form of t e trough.

passing transversely v 6. Acentrifugal casting machine compris-' ing a rotary mold; an end plate'therefor, constructed wlth'a circular opening concentric with the axis'of rotation of the mold and a cylindrical filling trough arranged to hold material in a fluid condition projecting throu h said opening into the mold and having' a plurality of spaced openings through which the material may be poured when the trough is turned on its axis of rotation.

a 7 'A centrifugal casting machine compr sing a cylindrical rotary mold, an end plate therefor constructed with a circular opening concentric with the axis of rotation, combined with a rotatively supported cylindrical filling trough-arranged to hold material in a ing into the mold, said trough being confluid condition, projecting thrdugh said openstructed to form a'discharge' slot in alinement with'the' axis oftrotatiomand having a plurality of strengthening bars across said slot,

said bars forming a continuation of the cylindrical form of the trough.

In"wi'tness whereof, I have hereunto set my hand this 25th day of September, 1922.

W LI M H. MILLSPAUGH. 

